Cellphone used as electronic wallet

The wallet might soon be replaced by your cellphone as time and technology progresses. Mobile banking services are slowly but surely extending its reach into every aspect of life, turning the humble cellphone into a powerful, portable banking tool, enabling you to send and receive money, as well as purchase goods on-the-fly. Of course naysayers will have plenty of concern regarding security of the system, but it sure as heck beats carrying cash and credit cards around. The country of Philippines is making inroads where e-commerce is concerned as the two biggest mobile service subscribers (Globe Telecom and Smart Communications) have taken steps to promote e-commerce using cellphones. How do you see this development change your spending habits?